I ripped through this book but liked it slightly less than the first one in the series. I think that both of these books have incredibly strong story buildups but then the bubble burst doesnt always match the caliber of the buildup. The pacing is just a bit slow for me I think, I'd probably consider it medium paced but I am impatient. 
The characters were definitely at their worst in this book, just not being very lovable, but they are literally in hell I should've been under no assumption that they'd all be nice and perfect all the time. 
I'd like some elaboration on certain events in this book that I hope to get clarity on in book 3. 

Hero almost dies too many times in this book for my personal liking.